Light-generating arrangement
AssigneeSiemens VDO Automotive Corporation
InventorEckhard Finger
Life of this patent
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Abstract
The invention relates to a light-generating arrangement comprising a light-emitting semiconductor element provided with electric supply lines and a transparent light-directing element (2) which is arranged upstream of the semiconductor element in the emission direction at a distance therefrom and which is used for concentrating the light emitted by said semiconductor element in such a way that a light stream is formed. The light output surface (4) of the light-directing element (2) comprises a microstructure (6) consisting of a plurality of elevations and cavities deviating the trajectory of the light stream by <5°.
Claims22
A light-generating arrangement comprising:
- a light-emitting semiconductor element having electrical supply lines;
- and
- a transparent light-orienting element arranged in front of the light-emitting semiconductor element at a distance in a direction of light emission, said light-orienting element concentrating the light emitted by the light-emitting semiconductor element to form a directional luminous flux;
- wherein a coupling-out surface of the light-orienting element has a microstructure formed from a multiplicity of nonuniform elevations and depressions having a peak-to-valley height of less than 100 μm, said microstructure deflecting individual beam paths of directed light beams of the luminous flux by an angle of <5°.
A light-generating arrangement comprising:
- a light-emitting semiconductor element having electrical supply lines;
- and
- a transparent light-orienting element arranged in front of the light-emitting semiconductor element at a distance in the emission direction, said light-orienting element concentrating light emitted by the light-emitting semiconductor element to form a directional luminous flux;
- wherein a wall of the light-orienting element, which extends from the coupling-in surface to the coupling-out surface of the light-orienting element, has a microstructure formed from a multiplicity of nonuniform elevations and depressions having a peak-to valley height of <100 μm, said microstructure deflecting a reflection of individual beam paths of directed light beams of the luminous flux at the wall of the light-orienting element by an angle of <5°.
Dependencies are inferred from the claim text.